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app/src/main/java/com/bonait/bnframework/common/utils/DisplayManager.java
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| /** | |||
| * <p> | |||
| * Copyright: Copyright (c) 2012 | |||
| * Company: ZTE | |||
| * Description: 屏幕管理类的实现文件 | |||
| * </p> | |||
| * @Title DisplayManager.java | |||
| * @Package com.zte.iptvclient.android.ui | |||
| * @version 1.0 | |||
| * @author jamesqiao10065075 | |||
| * @date 2012-3-3 | |||
| */ | |||
| package com.bonait.bnframework.common.utils; | |||
| import android.app.Activity; | |||
| import android.app.Service; | |||
| import android.content.pm.ActivityInfo; | |||
| import android.util.DisplayMetrics; | |||
| import android.view.View; | |||
| import android.view.ViewGroup; | |||
| import android.widget.TextView; | |||
| import com.apkfuns.logutils.LogUtils; | |||
| /** | |||
| * 屏幕管理类 | |||
| * @ClassName:DisplayManager | |||
| * @Description: 管理屏幕相关的内容，包括宽度和高度像素值。需要在应用刚启动时的第一个Activity中初始化下。 | |||
| * @author: | |||
| * | |||
| */ | |||
| public class DisplayManager | |||
| { | |||
| /** 日志标签 */ | |||
| private final static String LOG_TAG = "DisplayManager"; | |||
| /******************************参考的屏幕数据***************************/ | |||
| /** 参照分辨率 */ | |||
| private static int miReferencedMaxWidth = 800; | |||
| /** 参照分辨率 */ | |||
| private static int miReferencedMaxHeight = 1208; | |||
| /** 参照屏幕密度，基于160dpi */ | |||
| private static float mfReferencedScreenDensity = 1.0f; | |||
| /** 参照字体缩放比重 */ | |||
| private static float mfReferencedFontDensity = 1.0f; | |||
| /******************************实际的屏幕数据***************************/ | |||
| /** 宽度 */ | |||
| private static int miDisplayWidth = 1280; | |||
| /** 高度 */ | |||
| private static int miDisplayHeight = 752; | |||
| /** 屏幕密度 */ | |||
| private static float mfScreenDensity = 1.0f; | |||
| /** 当前系统设置字体密度 */ | |||
| private static float mfFontDensity = 1.0f; | |||
| /** 屏幕方向 */ | |||
| private static int miScreenOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED; | |||
| /******************************计算的屏幕数据***************************/ | |||
| /** 设备屏幕相对标准屏幕伸缩比例 */ | |||
| private static float mfDeviceScaleRate = 1.0f; | |||
| /** 相对标准屏幕，此设备水平拉伸比率 */ | |||
| private static double mfWidthScaleRate = 1.0f; | |||
| /** 相对标准屏幕，此设备高度拉伸比率 */ | |||
| private static double mfHeightScaleRate = 1.0f; | |||
| /** 是否需要缩放 */ | |||
| private static boolean mbNeedScaleView = false; | |||
| /** 字体大小类型 0：dp，1：px */ | |||
| private static int mTextSizeType = 0; | |||
| /** | |||
| * | |||
| * 设置参考的样张屏幕分辨率最大宽度和高度 | |||
| * @param iMaxWidth 样张屏幕分辨率最大宽度 | |||
| * @param iMaxHeight 样张屏幕分辨率最大高度 | |||
| */ | |||
| public static void setReferenceMaxWidthHeight(int iMaxWidth, int iMaxHeight) | |||
| { | |||
| LogUtils.d(LOG_TAG+ "iMaxWidth=" + iMaxWidth + ",iMaxHeight=" + iMaxHeight); | |||
| LogUtils.d(LOG_TAG+"iMaxWidth=" + iMaxWidth + ",iMaxHeight=" + iMaxHeight); | |||
| miReferencedMaxWidth = iMaxWidth; | |||
| miReferencedMaxHeight = iMaxHeight; | |||
| } | |||
| /** | |||
| * | |||
| * 设置参考的样张屏幕密度 | |||
| * <p> | |||
| * Description: 设置参考的样张屏幕密度，默认值1.0 | |||
| * <p> | |||
| * @param fDensity 参考屏幕密度 | |||
| */ | |||
| public static void setReferencedDensity(float fDensity) | |||
| { | |||
| LogUtils.d(LOG_TAG+ "fDensity=" + fDensity); | |||
| mfReferencedScreenDensity = fDensity; | |||
| } | |||
| /** | |||
| * | |||
| * 设置参考的样张字体比重 | |||
| * <p> | |||
| * Description: 设置参考的样张字体比重，默认值1.0 | |||
| * <p> | |||
| * @param fDensity 参考字体比重 | |||
| */ | |||
| public static void setReferencedScaledDensity(float fDensity) | |||
| { | |||
| LogUtils.d(LOG_TAG+ "fDensity=" + fDensity); | |||
| mfReferencedFontDensity = fDensity; | |||
| } | |||
| /** | |||
| * | |||
| * 获取屏幕宽度（像素） | |||
| * @return 宽度像素值 | |||
| */ | |||
| public static int getDisplayWidth() | |||
| { | |||
| return miDisplayWidth; | |||
| } | |||
| /** | |||
| * | |||
| * 获取屏幕高度（像素） | |||
| * @return 高度像素值 | |||
| */ | |||
| public static int getDisplayHeight() | |||
| { | |||
| return miDisplayHeight; | |||
| } | |||
| /** | |||
| * | |||
| * 根据px像素值换算成对应的dip值。 | |||
| * @param iPXValue 像素值 | |||
| * @return DIP对应的值 | |||
| */ | |||
| public static int getDipValueByPX(int iPXValue) | |||
| { | |||
| return iPXValue; | |||
| } | |||
| /** | |||
| * 获取换算后的宽度，以最大分辨率及样张的图上的参考宽度来换算。 | |||
| * @param iReferenceWidth 参考宽度（像素） | |||
| * @return 实际屏幕上的宽度（像素） | |||
| */ | |||
| public static int getRealWidth(int iReferenceWidth) | |||
| { | |||
| if (miReferencedMaxWidth > 0) | |||
| { | |||
| //此处计算去除屏幕密度，等同于传入的值的单位是dp | |||
| return (int) ((iReferenceWidth * miDisplayWidth) / (miReferencedMaxWidth/* * mfScreenDensity*/)); | |||
| } | |||
| else | |||
| { | |||
| LogUtils.w(LOG_TAG+ "Invalid miReferencedMaxWidth=" + miReferencedMaxWidth); | |||
| return 0; | |||
| } | |||
| } | |||
| /** | |||
| * 获取换算后的高度， 以最大分辨率及样张的图上的参考高度来换算。 | |||
| * @param iReferenceHeight 参考高度（像素） | |||
| * @return 实际屏幕上的高度（像素） | |||
| */ | |||
| public static int getRealHeight(int iReferenceHeight) | |||
| { | |||
| if (miReferencedMaxHeight > 0) | |||
| { | |||
| //此处计算去除屏幕密度，等同于传入的值的单位是dp | |||
| return (int) ((iReferenceHeight * miDisplayHeight) / (miReferencedMaxHeight/* * mfScreenDensity*/)); | |||
| } | |||
| else | |||
| { | |||
| LogUtils.w(LOG_TAG+ "Invalid miReferencedMaxHeight=" + miReferencedMaxHeight); | |||
| return 0; | |||
| } | |||
| } | |||
| /** | |||
| * | |||
| * 获取屏幕方向 | |||
| * <p> | |||
| * Description: 获取屏幕方向 | |||
| * <p> | |||
| * @return 屏幕方向 | |||
| */ | |||
| public static int getScreenOrientation() | |||
| { | |||
| return miScreenOrientation; | |||
| } | |||
| /** | |||
| * | |||
| * 更新屏幕相关数据 | |||
| * <p> | |||
| * Description: 更新屏幕分辨率、屏幕方向、密度等，每次屏幕参数发生变化，都需要调用更新下。 | |||
| * <p> | |||
| * @param activity 活动窗口 | |||
| */ | |||
| public static void updateDisplayInfo(Activity activity) | |||
| { | |||
| if (null != activity) | |||
| { | |||
| //获取分辨率等信息 | |||
| DisplayMetrics dm = new DisplayMetrics(); | |||
| activity.getWindowManager().getDefaultDisplay().getMetrics(dm); | |||
| //更新当前屏幕方向 | |||
| miScreenOrientation = activity.getResources().getConfiguration().orientation; | |||
| LogUtils.d(LOG_TAG+ "miScreenOrientation=" + miScreenOrientation); | |||
| updateDisplayInfo(dm); | |||
| } | |||
| } | |||
| /** | |||
| * | |||
| * 更新屏幕相关数据 | |||
| * <p> | |||
| * Description: 更新屏幕分辨率、屏幕方向、密度等，每次屏幕参数发生变化，都需要调用更新下。 | |||
| * <p> | |||
| * @param service 服务 | |||
| */ | |||
| public static void updateDisplayInfo(Service service) | |||
| { | |||
| if (null != service) | |||
| { | |||
| //获取分辨率等信息 | |||
| DisplayMetrics dm = service.getResources().getDisplayMetrics(); | |||
| //更新当前屏幕方向 | |||
| miScreenOrientation = service.getResources().getConfiguration().orientation; | |||
| LogUtils.d(LOG_TAG+ "miScreenOrientation=" + miScreenOrientation); | |||
| updateDisplayInfo(dm); | |||
| } | |||
| } | |||
| /** | |||
| * | |||
| * 更新屏幕相关数据 | |||
| * <p> | |||
| * Description: 更新屏幕分辨率、屏幕方向、密度等，每次屏幕参数发生变化，都需要调用更新下。 | |||
| * <p> | |||
| */ | |||
| private static void updateDisplayInfo(DisplayMetrics dm) | |||
| { | |||
| miDisplayWidth = dm.widthPixels; | |||
| miDisplayHeight = dm.heightPixels; | |||
| LogUtils.d(LOG_TAG+ "miDisplayWidth=" + miDisplayWidth + ",miDisplayHeight=" | |||
| + miDisplayHeight); | |||
| mfFontDensity = dm.scaledDensity; | |||
| LogUtils.d(LOG_TAG+ "mfFontDensity=" + mfFontDensity); | |||
| mfScreenDensity = dm.density; | |||
| LogUtils.d(LOG_TAG+ "mfScreenDensity=" + mfScreenDensity); | |||
| LogUtils.d(LOG_TAG+ "densityDpi=" + dm.densityDpi); | |||
| mbNeedScaleView = false; | |||
| //判断是否需要缩放（宽、高、屏幕密度、字体密度） | |||
| if (miDisplayWidth != miReferencedMaxWidth | |||
| || miDisplayHeight != miReferencedMaxHeight | |||
| || Math.abs(mfScreenDensity - mfReferencedScreenDensity) >= 0.001 | |||
| || Math.abs(mfFontDensity - mfReferencedFontDensity) >= 0.001) | |||
| { | |||
| mbNeedScaleView = true; | |||
| } | |||
| //宽度的缩放比例 | |||
| mfWidthScaleRate = 1.0f; | |||
| if (miReferencedMaxWidth > 0) | |||
| { | |||
| mfWidthScaleRate = 1.0 * miDisplayWidth | |||
| / (miReferencedMaxWidth * mfScreenDensity / mfReferencedScreenDensity); | |||
| LogUtils.d(LOG_TAG+ "mfWidthScaleRate=" + mfWidthScaleRate); | |||
| } | |||
| //高度的缩放比例 | |||
| mfHeightScaleRate = 1.0f; | |||
| if (miReferencedMaxHeight > 0) | |||
| { | |||
| mfHeightScaleRate = 1.0 * miDisplayHeight | |||
| / (miReferencedMaxHeight * mfScreenDensity / mfReferencedScreenDensity); | |||
| LogUtils.d(LOG_TAG+ "mfHeightScaleRate=" + mfHeightScaleRate); | |||
| } | |||
| //取较小者 | |||
| mfDeviceScaleRate = (float) (mfWidthScaleRate < mfHeightScaleRate | |||
| ? mfWidthScaleRate | |||
| : mfHeightScaleRate); | |||
| LogUtils.d(LOG_TAG+ "mfDeviceScaleRate=" + mfDeviceScaleRate); | |||
| //缩放比例为1，则不需要进行比例缩放处理 | |||
| if (Math.abs(mfDeviceScaleRate - 1.0) <= 0.001) | |||
| { | |||
| mbNeedScaleView = false; | |||
| } | |||
| LogUtils.d(LOG_TAG+ "mbNeedScaleView=" + mbNeedScaleView); | |||
| } | |||
| /** | |||
| * | |||
| * 根据当前设备与标准设备其高度和宽度的比例，选取最小比例(mfDeviceScaleRate)对view进行等比例缩放； | |||
| * 其中修改的项涉及width，height，padding，margin， | |||
| * 若控件是TextView 或其子类，还会对其字体大小进行缩放， | |||
| * 若width，height使用的是 WRAP_CONTENT 或者 FILL_PARENT ，则width，height不会被缩放。 | |||
| * @param view 需要进行缩放的的视图 | |||
| */ | |||
| public static void scaleView(View view) | |||
| { | |||
| if (null != view) | |||
| { | |||
| // scaleView(view, mfDeviceScaleRate); | |||
| scaleView(view, (float) mfWidthScaleRate); | |||
| } | |||
| else | |||
| { | |||
| LogUtils.w(LOG_TAG+"scaleView : view is null"); | |||
| } | |||
| } | |||
| /** | |||
| * | |||
| * 选取最小比例fRate对view进行等比例缩放； | |||
| * 其中修改的项涉及width，height，padding，margin， | |||
| * 若控件是TextView 或其子类，还会对其字体大小进行缩放， | |||
| * 若width，height使用的是 WRAP_CONTENT 或者 FILL_PARENT ，则width，height不会被缩放。 | |||
| * @param view 需要进行缩放的的视图 | |||
| * @param fRate 缩放比例 | |||
| */ | |||
| public static void scaleView(View view, float fRate) | |||
| { | |||
| if (!mbNeedScaleView || view == null || fRate <= 0.001) | |||
| { | |||
| return; | |||
| } | |||
| //对TextView的字体大小单独处理 | |||
| if (view instanceof TextView) | |||
| { | |||
| TextView txtView = (TextView) view; | |||
| //默认dp | |||
| float f = (float) (txtView.getTextSize() * fRate/** mfScreenDensity*/ | |||
| / mfFontDensity); | |||
| if (mTextSizeType == 1) //px | |||
| { | |||
| f = (float) (txtView.getTextSize() * fRate * mfScreenDensity / mfFontDensity); | |||
| } | |||
| txtView.setTextSize(f); | |||
| } | |||
| ViewGroup.LayoutParams params = (ViewGroup.LayoutParams) view.getLayoutParams(); | |||
| if (null != params) | |||
| { | |||
| //Width & Height | |||
| if (params.width != ViewGroup.LayoutParams.WRAP_CONTENT | |||
| && params.width != ViewGroup.LayoutParams.MATCH_PARENT) | |||
| { | |||
| params.width = (int) (params.width * fRate + 0.5f); | |||
| } | |||
| if (params.height != ViewGroup.LayoutParams.WRAP_CONTENT | |||
| && params.height != ViewGroup.LayoutParams.MATCH_PARENT) | |||
| { | |||
| params.height = (int) (params.height * fRate + 0.5f); | |||
| } | |||
| //Padding | |||
| view.setPadding((int) (view.getPaddingLeft() * fRate + 0.5f), | |||
| (int) (view.getPaddingTop() * fRate + 0.5f), | |||
| (int) (view.getPaddingRight() * fRate + 0.5f), | |||
| (int) (view.getPaddingBottom() * fRate + 0.5f)); | |||
| } | |||
| //Margin | |||
| ViewGroup.MarginLayoutParams params2 = (ViewGroup.MarginLayoutParams) view | |||
| .getLayoutParams(); | |||
| if (params2 != null) | |||
| { | |||
| params2.setMarginStart((int) (params2.getMarginStart() * fRate)); | |||
| params2.setMarginEnd((int) (params2.getMarginEnd() * fRate)); | |||
| params2.leftMargin *= fRate; | |||
| params2.rightMargin *= fRate; | |||
| params2.topMargin *= fRate; | |||
| params2.bottomMargin *= fRate; | |||
| } | |||
| } | |||
| /** | |||
| * getScreenDensity | |||
| * <p> | |||
| * Description: 获取屏幕密度 | |||
| * <p> | |||
| * @return | |||
| */ | |||
| public static float getScreenDensity() | |||
| { | |||
| return mfScreenDensity; | |||
| } | |||
| public static double getWidthScaleRate() | |||
| { | |||
| return mfWidthScaleRate; | |||
| } | |||
| public static double getHeightScaleRate() | |||
| { | |||
| return mfHeightScaleRate; | |||
| } | |||
| /** | |||
| * | |||
| * 设置 字体大小类型 0：dp，1：px ，默认dp | |||
| * @param iTextSizeType 0：dp，1：px | |||
| */ | |||
| public static void setTextSizeType(int iTextSizeType) | |||
| { | |||
| mTextSizeType = iTextSizeType; | |||
| } | |||
| /** | |||
| * | |||
| * 遍历全部子控件进行布局适配 | |||
| * <p> | |||
| * Description: 这里用一句话描述这个方法的作用 | |||
| * <p> | |||
| * @param root | |||
| */ | |||
| public static void scaleViewGroup(ViewGroup root) | |||
| { | |||
| for (int i = 0, n = root.getChildCount(); i < n; i++) | |||
| { | |||
| View v = root.getChildAt(i); | |||
| scaleView(v); | |||
| if (v instanceof ViewGroup) | |||
| { | |||
| scaleViewGroup((ViewGroup) v); | |||
| } | |||
| } | |||
| } | |||
| /** | |||
| * 判断是否需要缩放 避免adapter重绘时多次缩放 | |||
| * @param view | |||
| * @return | |||
| */ | |||
| public static boolean shouldScale(TextView view){ | |||
| if(view.getTextSize()> 34 || view.getTextSize()< 30){ | |||
| return true; | |||
| } | |||
| return false; | |||
| } | |||
| public static void scaleViewRemote(View view) | |||
| { | |||
| scaleView(view,(float) mfDeviceScaleRate); | |||
| } | |||
| } | |||